chromium/third_party/pdfium/fxbarcode/pdf417/BC_PDF417HighLevelEncoder.cpp

// Copyright 2014 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
// Original code is licensed as follows:
/*
 * Copyright 2006 Jeremias Maerki in part, and ZXing Authors in part
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "fxbarcode/pdf417/BC_PDF417HighLevelEncoder.h"

#include <array>

#include "core/fxcrt/fx_extension.h"
#include "core/fxcrt/fx_string.h"
#include "third_party/bigint/BigIntegerLibrary.hh"

namespace {

constexpr int16_t kLatchToText = …;
constexpr int16_t kLatchToBytePadded = …;
constexpr int16_t kLatchToNumeric = …;
constexpr int16_t kShiftToByte = …;
constexpr int16_t kLatchToByte = …;

constexpr std::array<const int8_t, 128> kMixed = …;

constexpr std::array<const int8_t, 128> kPunctuation = …;

bool IsAlphaUpperOrSpace(wchar_t ch) { … }

bool IsAlphaLowerOrSpace(wchar_t ch) { … }

bool IsMixed(wchar_t ch) { … }

bool IsPunctuation(wchar_t ch) { … }

bool IsText(wchar_t ch) { … }

}  // namespace

// static
std::optional<WideString> CBC_PDF417HighLevelEncoder::EncodeHighLevel(
    WideStringView msg) { … }

CBC_PDF417HighLevelEncoder::SubMode CBC_PDF417HighLevelEncoder::EncodeText(
    const WideString& msg,
    size_t startpos,
    size_t count,
    SubMode initialSubmode,
    WideString* sb) { … }

void CBC_PDF417HighLevelEncoder::EncodeBinary(pdfium::span<const uint8_t> bytes,
                                              size_t startpos,
                                              size_t count,
                                              EncodingMode startmode,
                                              WideString* sb) { … }

void CBC_PDF417HighLevelEncoder::EncodeNumeric(const WideString& msg,
                                               size_t startpos,
                                               size_t count,
                                               WideString* sb) { … }

size_t CBC_PDF417HighLevelEncoder::DetermineConsecutiveDigitCount(
    WideString msg,
    size_t startpos) { … }

size_t CBC_PDF417HighLevelEncoder::DetermineConsecutiveTextCount(
    WideString msg,
    size_t startpos) { … }

std::optional<size_t>
CBC_PDF417HighLevelEncoder::DetermineConsecutiveBinaryCount(
    WideString msg,
    pdfium::span<const uint8_t> bytes,
    size_t startpos) { … }